<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            font: 30px / 90px "楷体";
            /* text-align: center; */
        }

        ul {
            list-style: none;
        }

        .wrap {
            width: 1000px;
            height: 1000px;
            position: absolute;
            left: 50%;
            top: 50%;
            margin-top: -500px;
            margin-left: -500px;
            background: url(img/bg.jpg) no-repeat;
        }

        .menu {
            width: 330px;
            border-radius: 10px;
            overflow: hidden;
            margin-top: 285px;
            margin-left: 335px;
            background: #f87a75;
            box-shadow: 0 20px 50px rgba(248, 122, 117, .5);
        }

        .title {
            height: 90px;
            padding-left: 112px;
            box-sizing: border-box;
            color: #fff;
            position: relative;
        }

        .title::after {
            content: '';
            position: absolute;
            right: 36px;
            top: 41px;
            background: url(img/ar.png) no-repeat;
            width: 28px;
            height: 16px;
        }

        .list {
            width: 316px;
            padding-left: 7px;
            padding-bottom: 5px;
            display: none;
        }

        .list li {
            height: 90px;
            margin-bottom: 2px;
            background: #fee4e3;
            border-radius: 20px;
            padding-left: 112px;
            box-sizing: border-box;
            background-position: 23px 24px;
            background-repeat: no-repeat;

        }

        .list li:hover {
            background-color: #fff;
            box-shadow: 0 0 50px rgba(248, 122, 117, 0.93);
            position: relative;
        }
    </style>
</head>

<body>
    <div class="wrap">
        <div class="menu">
            <div class="title">菜单</div>
            <ul class="list">
                <li>微博</li>
                <li>图片</li>
                <li>博客</li>
                <li>视频</li>
            </ul>
        </div>
    </div>
    <script>
        var ulEle = $('.list')
        var titEle = $('.title')
        var oLi = document.querySelectorAll('li')

        var flag = false;
        titEle.onclick = function () {
            flag = !flag;
            if (flag) {
                ulEle.style.display = 'block'
            }
            else {
                ulEle.style.display = 'none'
            }
        }


        var flag = false;
        oLi.forEach(function (item) {
            item.onclick = function () {
                titEle.innerHTML = this.innerHTML;
                // console.log(this.innerHTML);
                flag = !flag;
                if (flag) ulEle.style.display = 'block'
                else ulEle.style.display = 'none'
            }
        })



        function $(ele) {
            return document.querySelector(ele);
        }

    </script>
</body>

</html>